TABLE OF CONTENTS 



Introduction on units of measurement and conversion factors 

 Units of measurement : general discussion .... 

 Dimension formulae for dynamic units ..... 



" " " heat units 



" of electric and magnetic units : general discussion 



" formulas in electrostatic system .... 



" *' " electromagnetic system 



Practical units of electricity, legalization of . 



PAGE 



XV 

 XV 



xvii 

 xxiii 



xxv 



xxvi 



xxix 



xxxiii 



TABLE 

 I. 



2. 



4- 

 5- 

 6. 



7- 

 8. 



9- 



lO. 



1 1. 



12. 



i2a. 



13- 



14. 



15- 



Formulae for conversion factors : (a) Fundamental units ... 2 



(^) Derived units ... 2 



I. Geometric and dynamic units 2 



II. Heat units .... 3 



III. Magnetic and electric units 3 

 Tables for converting U. S. weights and measures : 



(i) Customary to metric 5 



(2) Metric to customary 6 



Equivalents of metric and British imperial weights and measures : 



(i) Metric to imperial .7 



(2) Multiples, metric to imperial 8 



(3) Imperial to metric ........ 9 



(4) Multiples, imperial to metric ...... 10 



Volume of a glass vessel from weight of its volume of water or mercury 1 1 

 Elementary differential coefficients and integrals . . . .12 



Reciprocals, squares, cubes and square roots of natural numbers . 13 



Logarithms, 1000-2000 ......... 22 



Logarithms ........... 24 



Antilogarithms ........... 26 



Antilogarithms, .9000-1.0000 ........ 28 



Circular (trigonometric) functions, argument (° , ' •) • • • '3° 



" " " argument (radians) . . '35 

 Factorials, n!, n = i to 100 38 



Values of (hyperbolic sines), for values of x from o to 5 -39 



e'' — ^~^ 

 Logarithms of (hyperbolic smes), for values of x from o to 5 . 40 



Values of — ■ (hyperbolic cosines), for values of x from o to 5 .41 



